Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2124301-402 found under Washer Saddle by Navair And Navsea Managed. The National Stock Number assigned to this part is 5310006559401, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2124301-402.